i have sm 4.0 with cios rev 14 i just played animal crossing online for the first time. finish playing ... turn off my wii. turn on my wii 30 min later i get the system files are corrupt message. turn off my wii turn it back on ... boots to system menu fine. everything appears to be working. do i have anything to worry about? i don't have bootmii or preloader installed. anyone know what the heck happened.